[i]Q1)
If i were to uninstall my Microsoft Office 2007(using add and remove)on Vista SP1, would i still get updates for it, because theoretically, registry entries would still be there?[/i]
NO
[i]Q2)
Do updates for drivers of the computer also come through microsoft updates or do they get updated on their own?[/i]
Generally speaking No you do not get Driver Updates from the Windows Update Servers. While some companies pay M$ to include their Driver Updates through the Windows Update Servers most do not.
Also if you are just relying on the Auto Update Services from M$ you do not get Driver Updates, you need to log onto the M$ Update Servers and do a Custom Search for Updates the Auto Search doesn't pickup most of the updates except for Windows & some Office Updates.
Col